Bulletin Information

Bulletin Title: #21-NA-153 - Unable to Update Vehicle ECUs via OTA - (Jul 12, 2021)
Bulletin Type: Technical
Applies To: Entertainment / Programming and Setup

#21-NA-153 - Unable to Update Vehicle ECUs via OTA - (Jul 12, 2021)

Subject:
Unable to Update Vehicle ECUs via OTA

Brand:

Model:

Model Year:

Breakpoint and VIN:

Engine:

Transmission:

from

to

from

to

Cadillac

Escalade

2021

2021

September 21, 2020

1GYS3PKL3MR210085

April 4, 2021

1GYS4GKL9MR293311

Involved Re...

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Document Tags

Document Title: #21-NA-153 - Unable to Update Vehicle ECUs via OTA - (Jul 12, 2021)

update

vehicle

condition

onstar

module

software

version

over

service

installation

perform

battery

voltage

programming

available

click

size

important

download

screen

section

description

operation

radio

message

control

failed

bulletin

information

history

part

installed

july

replace

replacement

coverage

labor

software update

service bulletin

update installed

update failed

labor operation

download software update

click size click

size click size

update installed july

onstar update installed

replace onstar module

perform hardware replacement

hardware replacement service

replacement service bulletin

service bulletin onstar

update failed part

failed part latest

part latest software

update failed requires

failed requires replacement

requires replacement restore

replacement restore operation

telematic control module